Helix Planetary Nebula
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Nanotechnology inspires next-generation dental materials
Have a cavity? Ask your dentist about filling it with a mixture of nanoparticles including silica and zirconia. These white fillings (known as nano-composite resins) resemble teeth better than their metal alternatives and are less likely to come loose or fracture teeth. This is just the beginning argue Brazilian scientists in a review of "nanodentistry," published October 19 in Trends in Biotechnology. Next-generation dental materials incorporating nanotechnology aim to help teeth self-heal…